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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
| commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
| tree | f435a8308119effd964b339f76abb83a57c29483 /testing/web-platform/tests/css/css-transforms/animation/composited-transform.html | |
| parent | Initial commit. (diff) | |
| download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip | |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/css/css-transforms/animation/composited-transform.html')
| -rw-r--r-- | testing/web-platform/tests/css/css-transforms/animation/composited-transform.html | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/css-transforms/animation/composited-transform.html b/testing/web-platform/tests/css/css-transforms/animation/composited-transform.html new file mode 100644 index 0000000000..182321b9d3 --- /dev/null +++ b/testing/web-platform/tests/css/css-transforms/animation/composited-transform.html @@ -0,0 +1,38 @@ +<!DOCTYPE html> +<meta charset="utf-8"> +<title>Composition of transform animations</title> +<link rel="help" href="https://drafts.csswg.org/css-transforms-2/#combining-transform-lists"> +<meta name="assert" content="transform animations should composite correctly"> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> + +<div id="target"><div> + +<script> +test(() => { + var anim1 = target.animate( + { transform: [ 'translateX(0)', 'translateX(100px)' ]}, + 1000 + ); + var anim2 = target.animate( + { transform: [ 'translateY(0)', 'translateY(100px)' ]}, + {duration: 1000, composite: 'add'} + ); + + anim1.pause(); + anim2.pause(); + + anim1.currentTime = 200; + anim2.currentTime = 800; + + // The computation here should be: + // underlying_value = 'translateX(0)' --> 'translateX(100px)' @ 0.2 + // = 'translateX(20px)' + // final_value = 0.2 * ('translateX(20px) translateY(0)') + + // 0.8 * ('translateX(20px) translateY(100px)') + // = 'translateX(20px) translateY(80px)' + // = 'matrix(1, 0, 0, 1, 20, 80)' + assert_equals(getComputedStyle(target).transform, 'matrix(1, 0, 0, 1, 20, 80)') +}, 'An additive transform animation on-top of a replace transform animation ' + + 'should composite correctly'); +</script> |